CVE-2025-22166

This High severity DoS (Denial of Service) vulnerability was introduced in version 2.0 of Confluence Data Center. This DoS (Denial of Service) vulnerability, with a CVSS Score of 8.3, allows an attacker to cause a resource to be unavailable for its intended users by temporarily or indefinitely disrupting services of a host connected to a network. Atlassian recommends that Confluence Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.25 Confluence Data Center and Server 9.2: Upgrade to a release greater than or equal to 9.2.7 Confluence Data Center and Server 10.0: Upgrade to a release greater than or equal to 10.0.2 See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]). You can download the latest version of Confluence Data Center from the download center ([https://www.atlassian.com/software/confluence/download-archives]). This vulnerability was reported via our Atlassian (Internal) program.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://confluence.atlassian.com/pages/viewpage.action?pageId=1652920034	Vendor Advisory
https://jira.atlassian.com/browse/CONFSERVER-100907	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:atlassian:confluence_data_center::::::::
	cpe:2.3:a:atlassian:confluence_data_center::::::::
	cpe:2.3:a:atlassian:confluence_data_center::::::::
	cpe:2.3:a:atlassian:confluence_server::::::::
	cpe:2.3:a:atlassian:confluence_server::::::::
	cpe:2.3:a:atlassian:confluence_server::::::::

History

No history.

Information

Published : 2025-10-21 16:15

Updated : 2025-12-05 19:22

NVD link : CVE-2025-22166

Mitre link : CVE-2025-22166

CVE.ORG link : CVE-2025-22166

JSON object : View

Products Affected

atlassian

confluence_server
confluence_data_center

CWE

CWE-405

Asymmetric Resource Consumption (Amplification)

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